Summary data stasiun Shunyi

Dataset statistics

Number of variables	18
Number of observations	35064
Missing cells	8523
Missing cells (%)	1.4%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	4.8 MiB
Average record size in memory	144.0 B

Variable types

Numeric	15
Categorical	3

Alerts

`station` has constant value ""	Constant
`CO` is highly overall correlated with `NO2` and 3 other fields	High correlation
`DEWP` is highly overall correlated with `PRES` and 1 other fields	High correlation
`NO2` is highly overall correlated with `CO` and 4 other fields	High correlation
`No` is highly overall correlated with `year`	High correlation
`O3` is highly overall correlated with `NO2` and 1 other fields	High correlation
`PM10` is highly overall correlated with `CO` and 2 other fields	High correlation
`PM2.5` is highly overall correlated with `CO` and 2 other fields	High correlation
`PRES` is highly overall correlated with `DEWP` and 1 other fields	High correlation
`SO2` is highly overall correlated with `CO` and 1 other fields	High correlation
`TEMP` is highly overall correlated with `DEWP` and 2 other fields	High correlation
`year` is highly overall correlated with `No`	High correlation
`PM2.5` has 913 (2.6%) missing values	Missing
`PM10` has 548 (1.6%) missing values	Missing
`SO2` has 1296 (3.7%) missing values	Missing
`NO2` has 1365 (3.9%) missing values	Missing
`CO` has 2178 (6.2%) missing values	Missing
`O3` has 1489 (4.2%) missing values	Missing
`wd` has 483 (1.4%) missing values	Missing
`RAIN` is highly skewed (γ1 = 25.13980924)	Skewed
`No` is uniformly distributed	Uniform
`No` has unique values	Unique
`hour` has 1461 (4.2%) zeros	Zeros
`RAIN` has 33702 (96.1%) zeros	Zeros
`WSPM` has 792 (2.3%) zeros	Zeros

Reproduction

Analysis started	2024-03-08 05:14:28.770921
Analysis finished	2024-03-08 05:15:10.740197
Duration	41.97 seconds
Software version	ydata-profiling vv4.6.5
Download configuration	config.json

No
Real number (ℝ)

HIGH CORRELATION UNIFORM UNIQUE

Distinct	35064
Distinct (%)	100.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	17532.5

Minimum	1
Maximum	35064
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1754.15
Q1	8766.75
median	17532.5
Q3	26298.25
95-th percentile	33310.85
Maximum	35064
Range	35063
Interquartile range (IQR)	17531.5

Descriptive statistics

Standard deviation	10122.249
Coefficient of variation (CV)	0.57734204
Kurtosis	-1.2
Mean	17532.5
Median Absolute Deviation (MAD)	8766
Skewness	0
Sum	6.1475958 × 10⁸
Variance	1.0245993 × 10⁸
Monotonicity	Strictly increasing

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	1	< 0.1%
23379	1	< 0.1%
23373	1	< 0.1%
23374	1	< 0.1%
23375	1	< 0.1%
23376	1	< 0.1%
23377	1	< 0.1%
23378	1	< 0.1%
23380	1	< 0.1%
23422	1	< 0.1%
Other values (35054)	35054	> 99.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1	< 0.1%
2	1	< 0.1%
3	1	< 0.1%
4	1	< 0.1%
5	1	< 0.1%
6	1	< 0.1%
7	1	< 0.1%
8	1	< 0.1%
9	1	< 0.1%
10	1	< 0.1%

Value	Count	Frequency (%)
35064	1	< 0.1%
35063	1	< 0.1%
35062	1	< 0.1%
35061	1	< 0.1%
35060	1	< 0.1%
35059	1	< 0.1%
35058	1	< 0.1%
35057	1	< 0.1%
35056	1	< 0.1%
35055	1	< 0.1%

year
Categorical

HIGH CORRELATION

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

2016	8784
2014	8760
2015	8760
2013	7344
2017	1416

Length

Max length	4
Median length	4
Mean length	4
Min length	4

Characters and Unicode

Total characters	140256
Distinct characters	8
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2013
2nd row	2013
3rd row	2013
4th row	2013
5th row	2013

Common Values

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Most occurring characters

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring categories

Value	Count	Frequency (%)
Decimal Number	140256	100.0%

Most frequent character per category

Decimal Number

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring scripts

Value	Count	Frequency (%)
Common	140256	100.0%

Most frequent character per script

Common

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	140256	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

month
Real number (ℝ)

Distinct	12
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	6.5229295

Minimum	1
Maximum	12
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1
Q1	4
median	7
Q3	10
95-th percentile	12
Maximum	12
Range	11
Interquartile range (IQR)	6

Descriptive statistics

Standard deviation	3.4487524
Coefficient of variation (CV)	0.52871219
Kurtosis	-1.2080577
Mean	6.5229295
Median Absolute Deviation (MAD)	3
Skewness	-0.0092942217
Sum	228720
Variance	11.893893
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=12)

Value	Count	Frequency (%)
3	2976	8.5%
5	2976	8.5%
7	2976	8.5%
8	2976	8.5%
10	2976	8.5%
12	2976	8.5%
1	2976	8.5%
4	2880	8.2%
6	2880	8.2%
9	2880	8.2%
Other values (2)	5592	15.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	2976	8.5%
2	2712	7.7%
3	2976	8.5%
4	2880	8.2%
5	2976	8.5%
6	2880	8.2%
7	2976	8.5%
8	2976	8.5%
9	2880	8.2%
10	2976	8.5%

Value	Count	Frequency (%)
12	2976	8.5%
11	2880	8.2%
10	2976	8.5%
9	2880	8.2%
8	2976	8.5%
7	2976	8.5%
6	2880	8.2%
5	2976	8.5%
4	2880	8.2%
3	2976	8.5%

day
Real number (ℝ)

Distinct	31
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	15.729637

Minimum	1
Maximum	31
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	2
Q1	8
median	16
Q3	23
95-th percentile	29
Maximum	31
Range	30
Interquartile range (IQR)	15

Descriptive statistics

Standard deviation	8.8002175
Coefficient of variation (CV)	0.55946729
Kurtosis	-1.1940295
Mean	15.729637
Median Absolute Deviation (MAD)	8
Skewness	0.0067598056
Sum	551544
Variance	77.443829
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=31)

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%
21	1152	3.3%
Other values (21)	23544	67.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
3	1152	3.3%
4	1152	3.3%
5	1152	3.3%
6	1152	3.3%
7	1152	3.3%
8	1152	3.3%
9	1152	3.3%
10	1152	3.3%

Value	Count	Frequency (%)
31	672	1.9%
30	1056	3.0%
29	1080	3.1%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%

hour
Real number (ℝ)

ZEROS

Distinct	24
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	11.5

Minimum	0
Maximum	23
Zeros	1461
Zeros (%)	4.2%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	1
Q1	5.75
median	11.5
Q3	17.25
95-th percentile	22
Maximum	23
Range	23
Interquartile range (IQR)	11.5

Descriptive statistics

Standard deviation	6.9222853
Coefficient of variation (CV)	0.60193785
Kurtosis	-1.2041745
Mean	11.5
Median Absolute Deviation (MAD)	6
Skewness	0
Sum	403236
Variance	47.918033
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=24)

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
Other values (14)	20454	58.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
2	1461	4.2%
3	1461	4.2%
4	1461	4.2%
5	1461	4.2%
6	1461	4.2%
7	1461	4.2%
8	1461	4.2%
9	1461	4.2%

Value	Count	Frequency (%)
23	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
14	1461	4.2%

PM2.5
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	567
Distinct (%)	1.7%
Missing	913
Missing (%)	2.6%
Infinite	0
Infinite (%)	0.0%
Mean	79.491602

Minimum	2
Maximum	941
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	6
Q1	19
median	55
Q3	112
95-th percentile	242
Maximum	941
Range	939
Interquartile range (IQR)	93

Descriptive statistics

Standard deviation	81.231739
Coefficient of variation (CV)	1.0218908
Kurtosis	6.1756316
Mean	79.491602
Median Absolute Deviation (MAD)	40
Skewness	2.0281742
Sum	2714717.7
Variance	6598.5955
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	824	2.3%
8	637	1.8%
10	624	1.8%
9	591	1.7%
7	577	1.6%
12	552	1.6%
11	536	1.5%
14	530	1.5%
6	528	1.5%
13	510	1.5%
Other values (557)	28242	80.5%
(Missing)	913	2.6%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	5	< 0.1%
3	824	2.3%
4	329	0.9%
4.6	1	< 0.1%
5	410	1.2%
6	528	1.5%
7	577	1.6%
8	637	1.8%
9	591	1.7%
10	624	1.8%

Value	Count	Frequency (%)
941	1	< 0.1%
816	1	< 0.1%
762	1	< 0.1%
707	1	< 0.1%
689	1	< 0.1%
684	1	< 0.1%
671	1	< 0.1%
660	1	< 0.1%
650	1	< 0.1%
644	1	< 0.1%

PM10
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	605
Distinct (%)	1.8%
Missing	548
Missing (%)	1.6%
Infinite	0
Infinite (%)	0.0%
Mean	98.737026

Minimum	2
Maximum	999
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	8
Q1	31
median	77
Q3	138
95-th percentile	268
Maximum	999
Range	997
Interquartile range (IQR)	107

Descriptive statistics

Standard deviation	89.143718
Coefficient of variation (CV)	0.90283981
Kurtosis	6.7058535
Mean	98.737026
Median Absolute Deviation (MAD)	51
Skewness	1.9191421
Sum	3408007.2
Variance	7946.6025
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
6	648	1.8%
5	431	1.2%
14	394	1.1%
13	383	1.1%
12	372	1.1%
9	360	1.0%
11	347	1.0%
10	347	1.0%
17	344	1.0%
18	343	1.0%
Other values (595)	30547	87.1%
(Missing)	548	1.6%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	8	< 0.1%
3	44	0.1%
4	26	0.1%
5	431	1.2%
6	648	1.8%
7	290	0.8%
8	334	1.0%
9	360	1.0%
10	347	1.0%
11	347	1.0%

Value	Count	Frequency (%)
999	1	< 0.1%
951	1	< 0.1%
920	1	< 0.1%
917	1	< 0.1%
914	1	< 0.1%
912	1	< 0.1%
903	1	< 0.1%
873	1	< 0.1%
857	2	< 0.1%
835	1	< 0.1%

SO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	267
Distinct (%)	0.8%
Missing	1296
Missing (%)	3.7%
Infinite	0
Infinite (%)	0.0%
Mean	13.572039

Minimum	0.2856
Maximum	239
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2856
5-th percentile	2
Q1	2
median	5
Q3	17
95-th percentile	54
Maximum	239
Range	238.7144
Interquartile range (IQR)	15

Descriptive statistics

Standard deviation	19.572068
Coefficient of variation (CV)	1.4420876
Kurtosis	12.097853
Mean	13.572039
Median Absolute Deviation (MAD)	3
Skewness	2.952752
Sum	458300.6
Variance	383.06585
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	10335	29.5%
3	3202	9.1%
4	1689	4.8%
5	1272	3.6%
6	1122	3.2%
7	994	2.8%
8	870	2.5%
1	789	2.3%
9	746	2.1%
10	723	2.1%
Other values (257)	12026	34.3%
(Missing)	1296	3.7%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2856	18	0.1%
0.5712	16	< 0.1%
0.8568	9	< 0.1%
1	789	2.3%
1.1424	17	< 0.1%
1.428	16	< 0.1%
1.7136	12	< 0.1%
1.9992	8	< 0.1%
2	10335	29.5%
2.2	2	< 0.1%

Value	Count	Frequency (%)
239	1	< 0.1%
207	1	< 0.1%
203	2	< 0.1%
192	1	< 0.1%
191	1	< 0.1%
188	1	< 0.1%
186	1	< 0.1%
182	1	< 0.1%
180	1	< 0.1%
177	1	< 0.1%

NO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	517
Distinct (%)	1.5%
Missing	1365
Missing (%)	3.9%
Infinite	0
Infinite (%)	0.0%
Mean	43.908865

Minimum	2
Maximum	258
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	8
Q1	19
median	37
Q3	62
95-th percentile	104
Maximum	258
Range	256
Interquartile range (IQR)	43

Descriptive statistics

Standard deviation	30.996828
Coefficient of variation (CV)	0.70593553
Kurtosis	1.1842668
Mean	43.908865
Median Absolute Deviation (MAD)	20
Skewness	1.0766922
Sum	1479684.8
Variance	960.80332
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
10	640	1.8%
13	579	1.7%
11	573	1.6%
12	571	1.6%
9	557	1.6%
22	553	1.6%
16	547	1.6%
14	535	1.5%
24	531	1.5%
21	527	1.5%
Other values (507)	28086	80.1%
(Missing)	1365	3.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	226	0.6%
2.6689	1	< 0.1%
2.8742	1	< 0.1%
3	114	0.3%
3.0795	3	< 0.1%
3.2848	1	< 0.1%
3.4901	1	< 0.1%
4	219	0.6%
4.3113	2	< 0.1%
4.5166	1	< 0.1%

Value	Count	Frequency (%)
258	1	< 0.1%
241	1	< 0.1%
238	1	< 0.1%
214	1	< 0.1%
207	1	< 0.1%
204	3	< 0.1%
203	1	< 0.1%
196	1	< 0.1%
195	2	< 0.1%
194	1	< 0.1%

CO
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	115
Distinct (%)	0.3%
Missing	2178
Missing (%)	6.2%
Infinite	0
Infinite (%)	0.0%
Mean	1187.064

Minimum	100
Maximum	10000
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	100
5-th percentile	200
Q1	400
median	800
Q3	1500
95-th percentile	3400
Maximum	10000
Range	9900
Interquartile range (IQR)	1100

Descriptive statistics

Standard deviation	1156.3741
Coefficient of variation (CV)	0.9741464
Kurtosis	9.7869587
Mean	1187.064
Median Absolute Deviation (MAD)	500
Skewness	2.595075
Sum	39037786
Variance	1337201.1
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
300	2881	8.2%
400	2563	7.3%
200	2282	6.5%
500	2239	6.4%
600	2135	6.1%
700	1891	5.4%
800	1723	4.9%
900	1617	4.6%
1000	1448	4.1%
1100	1248	3.6%
Other values (105)	12859	36.7%
(Missing)	2178	6.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
100	948	2.7%
200	2282	6.5%
300	2881	8.2%
400	2563	7.3%
500	2239	6.4%
600	2135	6.1%
700	1891	5.4%
800	1723	4.9%
900	1617	4.6%
1000	1448	4.1%

Value	Count	Frequency (%)
10000	7	< 0.1%
9900	4	< 0.1%
9800	1	< 0.1%
9700	3	< 0.1%
9600	4	< 0.1%
9500	2	< 0.1%
9400	2	< 0.1%
9300	3	< 0.1%
9200	2	< 0.1%
9100	2	< 0.1%

O3
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	961
Distinct (%)	2.9%
Missing	1489
Missing (%)	4.2%
Infinite	0
Infinite (%)	0.0%
Mean	55.201321

Minimum	0.2142
Maximum	351.7164
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2142
5-th percentile	2
Q1	10
median	43
Q3	77
95-th percentile	173
Maximum	351.7164
Range	351.5022
Interquartile range (IQR)	67

Descriptive statistics

Standard deviation	54.873726
Coefficient of variation (CV)	0.99406545
Kurtosis	2.5804779
Mean	55.201321
Median Absolute Deviation (MAD)	33
Skewness	1.5255511
Sum	1853384.3
Variance	3011.1258
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	3478	9.9%
4	774	2.2%
3	714	2.0%
5	611	1.7%
6	550	1.6%
8	434	1.2%
7	430	1.2%
1	372	1.1%
9	371	1.1%
10	361	1.0%
Other values (951)	25480	72.7%
(Missing)	1489	4.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2142	30	0.1%
0.4284	14	< 0.1%
0.6426	17	< 0.1%
0.8568	27	0.1%
1	372	1.1%
1.071	16	< 0.1%
1.2852	21	0.1%
1.4994	15	< 0.1%
1.7136	19	0.1%
1.9278	25	0.1%

Value	Count	Frequency (%)
351.7164	1	< 0.1%
340	1	< 0.1%
339	2	< 0.1%
336	1	< 0.1%
333	1	< 0.1%
330	1	< 0.1%
329	1	< 0.1%
328	1	< 0.1%
326	2	< 0.1%
324	2	< 0.1%

TEMP
Real number (ℝ)

HIGH CORRELATION

Distinct	985
Distinct (%)	2.8%
Missing	51
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	13.387969

Minimum	-16.8
Maximum	40.6
Zeros	199
Zeros (%)	0.6%
Negative	5679
Negative (%)	16.2%
Memory size	274.1 KiB

Quantile statistics

Minimum	-16.8
5-th percentile	-4.4
Q1	3
median	14.4
Q3	23.2
95-th percentile	30.5
Maximum	40.6
Range	57.4
Interquartile range (IQR)	20.2

Descriptive statistics

Standard deviation	11.483588
Coefficient of variation (CV)	0.85775428
Kurtosis	-1.1689039
Mean	13.387969
Median Absolute Deviation (MAD)	9.9
Skewness	-0.1049148
Sum	468752.96
Variance	131.87279
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	227	0.6%
-2	213	0.6%
1	203	0.6%
0	199	0.6%
-1	195	0.6%
2	184	0.5%
-4	167	0.5%
-5	149	0.4%
23.6	140	0.4%
23.8	136	0.4%
Other values (975)	33200	94.7%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-16.8	1	< 0.1%
-16.7	1	< 0.1%
-16.2	1	< 0.1%
-16	2	< 0.1%
-15.9	2	< 0.1%
-15.8	4	< 0.1%
-15.7	1	< 0.1%
-15.4	1	< 0.1%
-15.3	1	< 0.1%
-15.1	2	< 0.1%

Value	Count	Frequency (%)
40.6	1	< 0.1%
40.5	1	< 0.1%
40.2	1	< 0.1%
39.8	1	< 0.1%
39.2	1	< 0.1%
39	1	< 0.1%
38.6	1	< 0.1%
38.3	2	< 0.1%
38	1	< 0.1%
37.9	1	< 0.1%

PRES
Real number (ℝ)

HIGH CORRELATION

Distinct	602
Distinct (%)	1.7%
Missing	51
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1013.0619

Minimum	988
Maximum	1042.8
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	988
5-th percentile	997.7
Q1	1004.7
median	1012.7
Q3	1021
95-th percentile	1030
Maximum	1042.8
Range	54.8
Interquartile range (IQR)	16.3

Descriptive statistics

Standard deviation	10.177339
Coefficient of variation (CV)	0.010046117
Kurtosis	-0.8427892
Mean	1013.0619
Median Absolute Deviation (MAD)	8.2
Skewness	0.13322236
Sum	35470338
Variance	103.57823
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1015	270	0.8%
1017	259	0.7%
1014	253	0.7%
1018	251	0.7%
1013	244	0.7%
1020	244	0.7%
1019	238	0.7%
1016	234	0.7%
1012	229	0.7%
1021	216	0.6%
Other values (592)	32575	92.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
988	1	< 0.1%
988.4	2	< 0.1%
988.5	1	< 0.1%
988.6	1	< 0.1%
988.7	1	< 0.1%
988.8	2	< 0.1%
988.9	1	< 0.1%
989	1	< 0.1%
989.2	2	< 0.1%
989.3	4	< 0.1%

Value	Count	Frequency (%)
1042.8	2	< 0.1%
1042.4	1	< 0.1%
1042.3	2	< 0.1%
1042.2	1	< 0.1%
1042	5	< 0.1%
1041.8	2	< 0.1%
1041.7	1	< 0.1%
1041.6	1	< 0.1%
1041.5	2	< 0.1%
1041.4	2	< 0.1%

DEWP
Real number (ℝ)

HIGH CORRELATION

Distinct	608
Distinct (%)	1.7%
Missing	54
Missing (%)	0.2%
Infinite	0
Infinite (%)	0.0%
Mean	2.4650357

Minimum	-36
Maximum	27.5
Zeros	82
Zeros (%)	0.2%
Negative	15486
Negative (%)	44.2%
Memory size	274.1 KiB

Quantile statistics

Minimum	-36
5-th percentile	-20
Q1	-8.8
median	3.1
Q3	15.1
95-th percentile	21.9
Maximum	27.5
Range	63.5
Interquartile range (IQR)	23.9

Descriptive statistics

Standard deviation	13.726622
Coefficient of variation (CV)	5.5685287
Kurtosis	-1.1267046
Mean	2.4650357
Median Absolute Deviation (MAD)	12
Skewness	-0.19952933
Sum	86300.9
Variance	188.42015
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
17.6	157	0.4%
16.2	139	0.4%
16.8	139	0.4%
17.7	138	0.4%
17.5	137	0.4%
17.4	137	0.4%
17.3	134	0.4%
16	133	0.4%
15.8	131	0.4%
16.3	131	0.4%
Other values (598)	33634	95.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-36	1	< 0.1%
-35.7	1	< 0.1%
-35.5	1	< 0.1%
-35.3	1	< 0.1%
-35.1	1	< 0.1%
-34.8	1	< 0.1%
-34.6	1	< 0.1%
-34.4	1	< 0.1%
-34.3	1	< 0.1%
-34	1	< 0.1%

Value	Count	Frequency (%)
27.5	1	< 0.1%
27.4	2	< 0.1%
27.3	1	< 0.1%
27.2	1	< 0.1%
27.1	2	< 0.1%
27	3	< 0.1%
26.9	7	< 0.1%
26.8	7	< 0.1%
26.7	6	< 0.1%
26.6	6	< 0.1%

RAIN
Real number (ℝ)

SKEWED ZEROS

Distinct	120
Distinct (%)	0.3%
Missing	51
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	0.061094451

Minimum	0
Maximum	37.3
Zeros	33702
Zeros (%)	96.1%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	0
Maximum	37.3
Range	37.3
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	0.76166849
Coefficient of variation (CV)	12.467065
Kurtosis	825.33696
Mean	0.061094451
Median Absolute Deviation (MAD)	0
Skewness	25.139809
Sum	2139.1
Variance	0.58013889
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	33702	96.1%
0.1	302	0.9%
0.2	143	0.4%
0.3	101	0.3%
0.4	84	0.2%
0.5	63	0.2%
0.6	57	0.2%
0.7	50	0.1%
0.8	39	0.1%
0.9	35	0.1%
Other values (110)	437	1.2%
(Missing)	51	0.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	33702	96.1%
0.1	302	0.9%
0.2	143	0.4%
0.3	101	0.3%
0.4	84	0.2%
0.5	63	0.2%
0.6	57	0.2%
0.7	50	0.1%
0.8	39	0.1%
0.9	35	0.1%

Value	Count	Frequency (%)
37.3	1	< 0.1%
36.9	1	< 0.1%
31.2	1	< 0.1%
30.9	1	< 0.1%
27	1	< 0.1%
25.3	1	< 0.1%
24.7	1	< 0.1%
24	1	< 0.1%
23.2	1	< 0.1%
22.5	1	< 0.1%

wd
Categorical

MISSING

Distinct	16
Distinct (%)	< 0.1%
Missing	483
Missing (%)	1.4%
Memory size	274.1 KiB

NNE	4540
N	3877
NE	3351
SSE	2963
SE	2665
Other values (11)	17185

Length

Max length	3
Median length	2
Mean length	2.2170556
Min length	1

Characters and Unicode

Total characters	76668
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	NW
2nd row	NW
3rd row	NW
4th row	NW
5th row	NW

Common Values

Value	Count	Frequency (%)
NNE	4540	12.9%
N	3877	11.1%
NE	3351	9.6%
SSE	2963	8.5%
SE	2665	7.6%
S	2613	7.5%
NW	2446	7.0%
WNW	2051	5.8%
NNW	1656	4.7%
SSW	1586	4.5%
Other values (6)	6833	19.5%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
nne	4540	13.1%
n	3877	11.2%
ne	3351	9.7%
sse	2963	8.6%
se	2665	7.7%
s	2613	7.6%
nw	2446	7.1%
wnw	2051	5.9%
nnw	1656	4.8%
ssw	1586	4.6%
Other values (6)	6833	19.8%

Most occurring characters

Value	Count	Frequency (%)
N	25533	33.3%
E	20258	26.4%
S	17463	22.8%
W	13414	17.5%

Most occurring categories

Value	Count	Frequency (%)
Uppercase Letter	76668	100.0%

Most frequent character per category

Uppercase Letter

Value	Count	Frequency (%)
N	25533	33.3%
E	20258	26.4%
S	17463	22.8%
W	13414	17.5%

Most occurring scripts

Value	Count	Frequency (%)
Latin	76668	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
N	25533	33.3%
E	20258	26.4%
S	17463	22.8%
W	13414	17.5%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	76668	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
N	25533	33.3%
E	20258	26.4%
S	17463	22.8%
W	13414	17.5%

WSPM
Real number (ℝ)

ZEROS

Distinct	103
Distinct (%)	0.3%
Missing	44
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1.8075328

Minimum	0
Maximum	12.8
Zeros	792
Zeros (%)	2.3%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0.4
Q1	1
median	1.5
Q3	2.3
95-th percentile	4.4
Maximum	12.8
Range	12.8
Interquartile range (IQR)	1.3

Descriptive statistics

Standard deviation	1.287817
Coefficient of variation (CV)	0.71247226
Kurtosis	4.3351173
Mean	1.8075328
Median Absolute Deviation (MAD)	0.6
Skewness	1.7606259
Sum	63299.8
Variance	1.6584726
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.1	1975	5.6%
1.3	1915	5.5%
1.2	1891	5.4%
1	1831	5.2%
1.4	1682	4.8%
1.5	1599	4.6%
0.9	1574	4.5%
1.6	1511	4.3%
0.8	1357	3.9%
1.7	1354	3.9%
Other values (93)	18331	52.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	792	2.3%
0.1	372	1.1%
0.2	353	1.0%
0.3	211	0.6%
0.4	512	1.5%
0.5	651	1.9%
0.6	882	2.5%
0.7	1116	3.2%
0.8	1357	3.9%
0.9	1574	4.5%

Value	Count	Frequency (%)
12.8	1	< 0.1%
11	1	< 0.1%
10.9	1	< 0.1%
10.7	1	< 0.1%
10.1	1	< 0.1%
9.9	1	< 0.1%
9.7	3	< 0.1%
9.6	1	< 0.1%
9.5	1	< 0.1%
9.4	3	< 0.1%

station
Categorical

CONSTANT

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

Shunyi	35064

Length

Max length	6
Median length	6
Mean length	6
Min length	6

Characters and Unicode

Total characters	210384
Distinct characters	6
Distinct categories	2 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	Shunyi
2nd row	Shunyi
3rd row	Shunyi
4th row	Shunyi
5th row	Shunyi

Common Values

Value	Count	Frequency (%)
Shunyi	35064	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
shunyi	35064	100.0%

Most occurring characters

Value	Count	Frequency (%)
S	35064	16.7%
h	35064	16.7%
u	35064	16.7%
n	35064	16.7%
y	35064	16.7%
i	35064	16.7%

Most occurring categories

Value	Count	Frequency (%)
Lowercase Letter	175320	83.3%
Uppercase Letter	35064	16.7%

Most frequent character per category

Lowercase Letter

Value	Count	Frequency (%)
h	35064	20.0%
u	35064	20.0%
n	35064	20.0%
y	35064	20.0%
i	35064	20.0%

Uppercase Letter

Value	Count	Frequency (%)
S	35064	100.0%

Most occurring scripts

Value	Count	Frequency (%)
Latin	210384	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
S	35064	16.7%
h	35064	16.7%
u	35064	16.7%
n	35064	16.7%
y	35064	16.7%
i	35064	16.7%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	210384	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
S	35064	16.7%
h	35064	16.7%
u	35064	16.7%
n	35064	16.7%
y	35064	16.7%
i	35064	16.7%

Auto

Heatmap
Table

	CO	DEWP	NO2	No	O3	PM10	PM2.5	PRES	RAIN	SO2	TEMP	WSPM	day	hour	month	wd	year
CO	1.000	0.107	0.717	-0.080	-0.387	0.740	0.826	0.081	0.013	0.562	-0.202	-0.376	0.010	-0.012	0.046	0.074	0.098
DEWP	0.107	1.000	-0.062	-0.102	0.221	0.178	0.253	-0.769	0.175	-0.328	0.821	-0.161	0.021	-0.013	0.250	0.121	0.152
NO2	0.717	-0.062	1.000	0.013	-0.570	0.682	0.670	0.154	-0.096	0.553	-0.286	-0.447	0.037	0.063	0.008	0.072	0.070
No	-0.080	-0.102	0.013	1.000	-0.067	-0.077	-0.058	0.171	0.003	-0.125	-0.122	-0.003	0.018	0.001	0.044	0.115	0.862
O3	-0.387	0.221	-0.570	-0.067	1.000	-0.235	-0.255	-0.400	0.008	-0.181	0.551	0.453	0.004	0.284	-0.171	0.149	0.057
PM10	0.740	0.178	0.682	-0.077	-0.235	1.000	0.914	-0.098	-0.068	0.483	0.001	-0.274	0.034	0.063	-0.037	0.078	0.068
PM2.5	0.826	0.253	0.670	-0.058	-0.255	0.914	1.000	-0.091	-0.016	0.485	-0.008	-0.329	0.015	0.006	-0.027	0.066	0.054
PRES	0.081	-0.769	0.154	0.171	-0.400	-0.098	-0.091	1.000	-0.086	0.264	-0.831	-0.042	0.019	-0.038	-0.037	0.088	0.153
RAIN	0.013	0.175	-0.096	0.003	0.008	-0.068	-0.016	-0.086	1.000	-0.125	0.044	0.016	-0.004	-0.006	0.041	0.011	0.000
SO2	0.562	-0.328	0.553	-0.125	-0.181	0.483	0.485	0.264	-0.125	1.000	-0.348	-0.117	0.003	0.071	-0.199	0.045	0.091
TEMP	-0.202	0.821	-0.286	-0.122	0.551	0.001	-0.008	-0.831	0.044	-0.348	1.000	0.157	0.017	0.145	0.123	0.127	0.148
WSPM	-0.376	-0.161	-0.447	-0.003	0.453	-0.274	-0.329	-0.042	0.016	-0.117	0.157	1.000	-0.009	0.122	-0.139	0.153	0.033
day	0.010	0.021	0.037	0.018	0.004	0.034	0.015	0.019	-0.004	0.003	0.017	-0.009	1.000	0.000	0.010	0.032	0.000
hour	-0.012	-0.013	0.063	0.001	0.284	0.063	0.006	-0.038	-0.006	0.071	0.145	0.122	0.000	1.000	0.000	0.134	0.000
month	0.046	0.250	0.008	0.044	-0.171	-0.037	-0.027	-0.037	0.041	-0.199	0.123	-0.139	0.010	0.000	1.000	0.101	0.249
wd	0.074	0.121	0.072	0.115	0.149	0.078	0.066	0.088	0.011	0.045	0.127	0.153	0.032	0.134	0.101	1.000	0.117
year	0.098	0.152	0.070	0.862	0.057	0.068	0.054	0.153	0.000	0.091	0.148	0.033	0.000	0.000	0.249	0.117	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

The correlation heatmap measures nullity correlation: how strongly the presence or absence of one variable affects the presence of another.

First rows
Last rows

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
0	1	2013	3	1	0	3.0	6.0	3.0	8.0	300.0	44.0	-0.9	1025.8	-20.5	NW	9.3	Shunyi
1	2	2013	3	1	1	12.0	12.0	3.0	7.0	300.0	47.0	-1.1	1026.1	-21.3	NW	9.4	Shunyi
2	3	2013	3	1	2	14.0	14.0	NaN	7.0	200.0	22.0	-1.7	1026.2	-23.0	NW	8.6	Shunyi
3	4	2013	3	1	3	12.0	12.0	3.0	5.0	NaN	NaN	-2.1	1027.3	-23.3	NW	6.6	Shunyi
4	5	2013	3	1	4	12.0	12.0	3.0	NaN	200.0	11.0	-2.4	1027.7	-22.9	NW	4.5	Shunyi
5	6	2013	3	1	5	11.0	11.0	3.0	7.0	200.0	45.0	-2.8	1028.2	-22.1	NNW	1.7	Shunyi
6	7	2013	3	1	6	12.0	12.0	3.0	9.0	300.0	74.0	-4.0	1029.0	-21.2	NNE	1.6	Shunyi
7	8	2013	3	1	7	13.0	13.0	3.0	23.0	300.0	59.0	-2.4	1030.5	-21.3	NE	1.7	Shunyi
8	9	2013	3	1	8	8.0	8.0	3.0	19.0	400.0	66.0	-1.0	1031.2	-21.8	NNW	2.7	Shunyi
9	10	2013	3	1	9	3.0	6.0	3.0	21.0	400.0	60.0	0.0	1031.3	-22.9	SSW	0.8	Shunyi

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
35054	35055	2017	2	28	14	6.0	14.0	2.0	7.0	200.0	96.0	14.5	1013.9	-12.7	NW	5.1	Shunyi
35055	35056	2017	2	28	15	6.0	14.0	2.0	8.0	200.0	97.0	15.3	1013.2	-13.0	WNW	4.2	Shunyi
35056	35057	2017	2	28	16	10.0	10.0	2.0	7.0	200.0	99.0	15.1	1012.9	-13.2	NW	3.3	Shunyi
35057	35058	2017	2	28	17	11.0	26.0	3.0	14.0	300.0	92.0	14.6	1013.0	-13.6	WNW	3.2	Shunyi
35058	35059	2017	2	28	18	15.0	35.0	6.0	39.0	500.0	67.0	12.6	1013.5	-11.9	WSW	1.3	Shunyi
35059	35060	2017	2	28	19	27.0	72.0	8.0	92.0	800.0	16.0	10.3	1014.2	-12.4	W	1.8	Shunyi
35060	35061	2017	2	28	20	47.0	55.0	17.0	86.0	1100.0	19.0	9.8	1014.5	-9.9	NW	1.5	Shunyi
35061	35062	2017	2	28	21	18.0	28.0	4.0	30.0	500.0	64.0	9.1	1014.6	-12.7	NE	1.7	Shunyi
35062	35063	2017	2	28	22	18.0	20.0	9.0	33.0	500.0	59.0	7.1	1015.2	-13.2	WNW	1.8	Shunyi
35063	35064	2017	2	28	23	15.0	22.0	13.0	34.0	500.0	60.0	7.4	1014.9	-11.9	N	1.4	Shunyi

Overview

Variables

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Decimal Number

Most occurring scripts

Most frequent character per script

Common

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Lowercase Letter

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Interactions

Correlations

Missing values

Sample